28896912 has 100 divisors (see below), whose sum is σ = 91284336. Its totient is φ = 8752320.

The previous prime is 28896883. The next prime is 28896913. The reversal of 28896912 is 21969882.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28896913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13243 + ... + 15269.

Almost surely, 2^28896912 is an apocalyptic number.

28896912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28896912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45642168).

28896912 is an abundant number, since it is smaller than the sum of its proper divisors (62387424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28896912 is a wasteful number, since it uses less digits than its factorization.

28896912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 2043 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 28896912 is about 5375.5848053956. The cubic root of 28896912 is about 306.8672055268.

Subtracting from 28896912 its product of digits (124416), we obtain a square (28772496 = 5364²).

It can be divided in two parts, 2889 and 6912, that added together give a square (9801 = 99²).

The spelling of 28896912 in words is "twenty-eight million, eight hundred ninety-six thousand, nine hundred twelve".